Wikipedia:How to disable the VisualEditor
The official opt-out
Access to VisualEditor is handled by user preferences on the English Wikipedia. To remove your access to VisualEditor, go to the Editing section of Special:Preferences and check "Temporarily disable the visual editor while it is in beta".
Options for IP users
VisualEditor is not currently available to unregistered or logged-out users at the English Wikipedia. However, it is possible to access VisualEditor by manually editing the URL. To do so, append ?veaction=edit
to the end of the page name. For example, change https://en.wikipedia.org/wiki/Special:Random to https://en.wikipedia.org/wiki/Special:Random?veaction=edit to open a random page in VisualEditor.
Unsupported browsers
At the moment, VisualEditor is turned off for users of Internet Explorer 9 and earlier. There are advantages and disadvantages to using IE as a browser, but if you're an anonymous editor who doesn't mind the disadvantages, and are using Windows, one option is to edit Wikipedia using an older version of Internet Explorer – you won't be offered the opportunity to edit with VisualEditor.
At some point, IE 9 will in fact be supported by VisualEditor. When that happens, you can check back here for more alternatives. Or you can use an even older IE version (8 or earlier) to edit Wikipedia - older versions will not ever be supported by VisualEditor.
Other (less-used) browsers may also not be supported by VisualEditor, now or in the future. You'll need to check each, individually, to see if the "Edit source" tab is visible on a Wikipedia article; if it is, then there will be an "Edit" tab to use VisualEditor, and the browser is supported by VisualEditor.